mt8986al1 Zarlink Semiconductor, mt8986al1 Datasheet - Page 20

• Manufacturer Part Number: mt8986al1
• Description: Multiple Rate Digital Switch
• Manufacturer: Zarlink Semiconductor

x=Don’t care
These bits are only used when the Switching Configuration bits enable stream pair selection capability (SCB 1-0 =10) and the Input Data Rate Selection bits
enable 2 Mb/s operation (IDR-0 = 00). In all other modes, the contents of this register are ignored.
2 Mb/s to 4 Mb/s
2 Mb/s to 8 Mb/s
4 Mb/s to 2 Mb/s
8 Mb/s to 2 Mb/s
Stream Pair Selection Register - Read/Write (ONLY PROVIDED IN THE 44 PIN PACKAGES)
BIT
5-3
2-0
Different
Rate
I/O
NAME
SPA2-0
SPB2-0
Table 10 - CAB and SAB Bits Programming for Different I/O Rate Applications
Output Streams
Stream Pair A selection. These three bits define which pair of streams are going to be connected
to the switch matrix, together with the permanently connected streams
STi0-1 / STo0-1.
Stream Pair B selection. These three bits define which pair of streams are going to be connected
to the switch matrix, together with the permanently connected streams
STi0-1 / STo0-1.
# of Input x
8x4
8x2
4x8
2x8
X
7
Figure 7 - Stream Pair Selection (SPS) Register
SPA2
SPB2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
6
X
CAB4 to CAB0 (32 channel/inp. stream)
CAB4 to CAB0 (32 channel/inp. stream)
CAB5 to CAB0 (64 channel/inp. stream)
CAB6 to CAB0 (128 channel/inp. stream)
SPA2
CAB bits used to determine the source
5
Zarlink Semiconductor Inc.
SPA1
SPB1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
channel for the connection
SPA1
MT8986
4
20
SPA0
SPA0
SPB0
3
DESCRIPTION
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
SPB2
2
Stream Pair A Connected
Stream Pair B Connected
SPB1
1
STi2 / STo2
STi3 / STo3
STi4 / STo4
STi5 / STo5
STi6 / STo6
STi7 / STo7
STi8 / STo8
STi9 / STo9
STi2 / STo2
STi3 / STo3
STi4 / STo4
STi5 / STo5
STi6 / STo6
STi7 / STo7
STi8 / STo8
STi9 / STo9
SPB0
0
SAB2, SAB1, SAB0
SAB2, SAB1, SAB0
SAB2, SAB1
SAB2
determine the source
SAB bits used to
stream for the
connection
Data Sheet